Reducing noise in a biological signal
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United States of America Patent
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Jun 1, 1999
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N/A
app pub date -
May 4, 1998
filing date -
May 4, 1998
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Abstract
A method of reducing noise in a biological signal, such as an ECG signal, includes acquiring a biological signal, comparing the biological signal to a representative signal, and generating a predicted signal corresponding to the representative signal when the biological signal sufficiently matches the representative signal. The predicted signal is subtracted from the biological signal to produce a second signal, and a filter is applied to the second signal to produce a filtered signal. The predicted signal and the filtered signal then are combined to produce a noise-reduced signal.
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